How to Modify Anti-Lag System?

[VonCody]

Modifying anti-lag system on civilian vehicles is illegal. The anti-lag system causes significant mechanical damage to the engine, with more disadvantages than benefits, and generally not recommended for modification. Anti-lag system works by stopping ignition during throttle-off gear shifts, deliberately allowing fuel-air mixture to enter the exhaust header when exhaust valves open. Here are relevant details: 1. The exhaust header reaches extremely high temperatures, causing instant combustion when the mixture contacts it. The powerful combustion pressure drives the turbocharger's exhaust turbine, making the compressor wheel spin at high speed to maintain boost pressure, ensuring turbo response even during low-speed driving or gear shifts. 2. The primary purpose of anti-lag system is to maintain turbocharger operation when the engine doesn't require power output but needs substantial airflow, particularly for turbocharged race cars during cornering when reducing power, ensuring immediate power response when needed.